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首页> 外文期刊>Chemistry: A European journal >Assembly of Silver(I) Polymers with Helical and Lamellar Structures
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Assembly of Silver(I) Polymers with Helical and Lamellar Structures

机译：具有螺旋和层状结构的银（I）聚合物的组装

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摘要

The new versatile multidentate nonchelating ligand 1,2-bis[(2-pyrimidinyl)-sulfanylmethyl]benzene (bpsb) was designed and prepared for supramolecular syntheses. Self-assembly between silver nitrate and the bpsb ligand resulted in the polymer [Ag_4(bpsb)_2-(NO_3)_4]_n (1) with a single-stranded helical chain structure. Each bpsb ligand in 1 acts as a tetradentate ligand, in which two sulfur atoms and two nitrogen atoms from different pyrimidine groups coordinate to four Ag atoms in four different directions. The nitrate anions serve as a template for the formation of the helix and are either embedded in the interior of the helix or located in the flank of the helix. Self-assembly between silver perchlorate and the bpsb ligand under the same conditions gave rise to the polymer [Ag_2(bpsb)_3(CIO_4)_2]_n (2) comprising a two-dimensional lamessar network containing crownlike cavities. The silver atoms in two adjacent layers are arranged staggered in 2. The two-dimen-sional lamellar network comprising isolated cavities of [Ag_6(bpsb)_6] is very different from that of usual honeycomb structures.
机译：设计并制备了新的通用多齿非螯合配体1,2-双[（2-嘧啶基）-硫烷基甲基]苯（bpsb），用于超分子合成。硝酸银与bpsb配体之间的自组装产生了具有单链螺旋链结构的聚合物[Ag_4（bpsb）_2-（NO_3）_4] _n（1）。 1中的每个bpsb配体都充当四齿配体，其中来自不同嘧啶基团的两个硫原子和两个氮原子在四个不同的方向上与四个Ag原子配位。硝酸根阴离子用作形成螺旋的模板，并且嵌入在螺旋的内部或位于螺旋的侧面。在相同条件下，高氯酸银和bpsb配体之间的自组装产生了聚合物[Ag_2（bpsb）_3（CIO_4）_2] _n（2），该聚合物[2]包含二维的冠状腔Lamessar网络。两个相邻层中的银原子交错排列成2。包含[Ag_6（bpsb）_6]隔离腔的二维层状网络与通常的蜂窝结构非常不同。

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